Seagate ST3250624NS, ST3250824NS, ST3400833NS, ST3400633NS User Manual

Product Manual

NL35.2 Series® Serial ATA

ST3400833NS
ST3400633NS
ST3250824NS
ST3250624NS

100409437
Rev . A
August 2007

Copyright © 2006-2007 Seagate Technology LLC. All rights reserved. Printed in USA
Publication number: 100409437, Rev. A

August 2007
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC

in the United States and/or other countries. NL35 Series, SeaTools and SeaTDD are either trademarks or
registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States
and/or other countries. All other trademarks or registered trademarks are the property of their respective
owners.

One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity
may vary depending on oper ating envi ronme nt and for matting. Seagate reserves the right to chan ge, wi th­out notice, product offerings or specifications.

NL35.2 Series SATA Product Manual, Rev. A

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Contents

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Formatted capacity* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.4 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.5 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.7.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.8 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.10 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.11 Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.12 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.13 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 13

2.14 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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NL35.2 Series SATA Product Manual, Rev. A

iii

List of Figures

Figure 1. Typical 5V startup and operating current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 2. Typical 12V startup and operating current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 3. Serial ATA connectors and jumper options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

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1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate
NL35.2 Series Serial ATA model drives:

NL35.2 Series Serial ATA

• ST3400833NS

• ST3400633NS

• ST3250824NS

• ST3250624NS
These drives provide the following key features:

• 7,200 RPM spindle speed.

• 8 Mbyte buffer: ST3400833NS and ST3250824NS models

• 16 Mbyte buffer: ST3400633NS and ST3250624NS models

• High instantaneous (burst) data-transfer rates.

• Tunneling Magnetoresistive (TMR) recording heads.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Native Command Queueing with command ordering to increase performance in demanding applications.

• Full-track multiple-sector transfer capability without local processor intervention.

• Quiet operation.

• 300 Gs nonoperating shock.

• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Supports latching SATA cables and connectors.

• Supports hotplug operation per SATA II specification.

• Supports S.M.A.R.T. Command Transport (SCT) to provide enterprise-like features in an industry-accepted
transport mechanism. See Section 4.3.3.1 for additional information about SCT.

• Supports the Write Same command to allow large writes without host interface overhead.

• Supports Error Recovery Control to allow the host to put a soft time limit on read and write commands.

• One-Step Microcode Download which allows enterprise clients to download new drive code with a single
download command using the host download utility.

• Workload management features to manage drive temperature and activity. This optimizes drive reliability in
nearline environments with no user intervention required.

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NL35.2 Series SATA Product Manual, Rev. A

1.1 About the Serial ATA interface

The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary
advantages include:

• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump­ers or other configuration options.

• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.

• Scalability to higher performance levels.

In addition, Serial ATA makes the transitio n from pa ral lel ATA easy by providing legacy software support. Serial
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current
system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host
adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0
(master) devices.

Note. The host adapter may, optionally, emulate a master/slave environment to host software where two

devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA
environment.

The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide
backward compatibility with existing host systems and software. The Command and Control Block registers,
PIO and DMA data transfers, resets, and interrupts are all emulated.

The Serial ATA host adapter cont ai ns a set of registe rs that sha dow the conte nts of the traditional device r egis­ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi­tional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from www.serialata.org.

NL35.2 Series SATA Product Manual, Rev. A

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2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate
ST3500841NS and ST3500641NS models.

2.1 Formatted ca pacity*

Model Formatted capacity Guaranteed sectors Bytes per sector

ST3400833NS and ST3400633NS 400 Gbytes 781,422,768 512
ST3250824NS and ST3250624NS 250 Gbytes 488,397,168 512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary
depending on operating environment and formatting.

2.1.1 LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48­bit addressing support of drives with capacities over 137 Gbytes.

2.2 Default logi cal geometr y

Cylinders Read/write heads Sectors per track

16,383 16 63

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.

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NL35.2 Series SATA Product Manual, Rev. A

2.3 Recording and int er f ac e technology

Interface Serial ATA (SATA)
Recording method 16/17 EPRML
Recording density BPI (bits/inch max) 790.1k
Track density TPI (tracks/inch avg) 124.5k
Areal density (Gbits/inch2 avg) 97.69
Spindle speed (RPM) (± 0.2%) 7,200
Internal data transfer rate (Mbits/sec max) 815.2 (ST3400833NS and ST3400633NS)

867.2 (ST3250824NS and ST3250624NS)

Sustained transfer rate (Mbytes/sec) 65 (ST3400833NS and ST3400633NS)

76.6 (ST3250824NS and ST3250624NS)
I/O data-transfer rate (Mbytes/sec max) 300
Interleave 1:1
Cache buffer ST3400633NS and ST3250624NS: 16 Mbytes (16,384 kbytes)

ST3400833NS and ST3250824NS: 8 Mbytes (8,192 kbytes)

2.4 Physical characteristics

Maximum he i g ht

(mm)
(inches)

Maximum wid th

(mm)
(inches)

Maximum length

(mm)
(inches)

Maximum wei g h t

(grams)
(pounds)

26.11

1.028

101.85

4.010

146.99

5.787

710

1.57

2.5 Seek time

Seek measurem ent s a re t ake n wi th nom inal po w er a t 25 °C amb ient temperature. All tim es a re m easu red using
drive diagnostics. The specifications in the table below are defined as follows:

• Track-to-track seek time is an average of all possible single-track seeks in both directions.

• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between
random tracks, less overhead.

T yp ical seek times (msec) Read Write

Track-to-track <0.8 <1.0
Average

ST3400833NS and ST3400633NS
ST3250824NS and ST3250624NS

Average latency: 4.16 4.16

Note. These drives ar e de si gned to consisten tl y me et t he se ek t imes r epr esente d in thi s manu al. P hysical

seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted

<8.2
<8.0

<9.0
<8.0

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5

values. However, due to the manner in which these drives are formatted, benchmark tests that
include command overhead or measure logical seeks may produce results that vary from these
specifications.

2.6 Start/stop times

ST3400833NS ST3400633NS

Power-on to Ready (sec) 13 (max) 11 (max)
St andby to Ready (sec) 13 (max) 11 (max)
Ready to spindle stop (sec) 14 (max) 12 (max)

2.7 Power specifications

The drive recei ve s D C po we r ( +5V or +12V ) t hrou gh a native SATA power connect or. See Figu re 4 on p age 16.

2.7.1 Power consumption

Power requiremen ts fo r the drive s are listed i n the t able on pa ge 9. Typical powe r measu rem ent s are ba sed on
an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient
temperature.

• Spinup power

Spinup power is measured from power-on to the time that the drive spindle reaches operating speed.

• Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and
does not execute a read or write operation. Servo electronics are active. Seek mode power represents the
worst-case power consumption, using only random seeks with read or write latency time. This mode is not
typical and is provided for worst-case information.

• Read/write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec
delay, then a 16-sector read followed by a 32-msec delay.

• Operating power and curr ent

Operating powe r is me asure d usi ng 40 p ercen t ran dom seeks, 4 0 per cent r ead/ wri te m ode ( 1 write for each
10 reads) and 20 percent drive idle mode.

• Idle mode power

Idle mode power is measu red with the drive up to speed, with servo e le ctron ics acti ve and with the he ads i n
a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down mode.

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NL35.2 Series SATA Product Manual, Rev. A

Table 1: ST3400833NS and ST3400633NS DC power requirements

Power dissipation Average (25° C)

Spinup 2.90 Amps (peak)
Idle* 9.30 watts
Operating (40% r/w, 40% seek, 20% inop.) 13.00 watts
Seeking (random, 20% idle) 12.60 watts
St andby 1.25 watts
Sleep 1.25 watts

Table 2: ST3250824NS and ST3250624NS DC power requirements

Power dissipation Average (25° C)

Spinup 2.80 Amps (peak)
Idle* 7.75 watts
Operating (40% r/w, 40% seek, 20% inop.) 9.82 watts
Seeking (random, 20% idle) 11.35 watts
St andby 1.24 watts
Sleep 1.24 watts

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase

acoustic and power to operational levels.

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2.7.1.1 Typical current profile

Figure 1. Typical 5V startup and operating current profile

Figure 2. Typical 12V startup and operating current profile

2.7.2 Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on
the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

• Using 12-volt power, the drive is expect ed to oper ate wit h a maxim um of 120 mV peak-to -pea k square- wave
injected noise at up to 10 MHz.

• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave
injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write

current.

2.7.3 Voltage tolerance

Voltage tolerance (including noise):
5V ± 5%

12V ± 10%

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NL35.2 Series SATA Product Manual, Rev. A

2.7.4 Power-manag ement mo des

The drive provides programmable power management to provide greater energy efficiency. In most systems,
you can control power management through the system setup program. The drive features the following
power-management modes:

Power modes Heads Spindle Buffer

Active Tracking Rotating Enabled
Idle Tracking Rotating Enabled
Standby Parked Stopped Enabled
Sleep Parked Stopped Disabled

• Active mode
The drive is in Active mode during the read/write and seek operations.

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc
access is necessary.

• Standby mode
The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set

the standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for
a specifiable length of time. The standby timer delay is established using a Standby or Idle command. In
Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive
accepts all commands and returns to Active mode any time disc access is necessary.

• Sleep mode

The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive
buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it
receives a Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and
enters Standby mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any
drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the
drive accepts all commands and returns to Active mode when disc access is necessary.

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2.8 Environmen tal specifications

2.8.1 Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.

Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet
(3,048 meters).

Operating: 0° to 60°C (32° to 140°F)
Nonoperating: –40° to 70°C (–40° to 158°F)

2.8.2 Temperature gradient

Operating: 20°C per hour (68°F per hour max), without condensation
Nonoperating: 30°C per hour (86°F per hour max)

2.8.3 Humidity

2.8.3.1 Relative humidity

Operating: 5% to 90% noncondensing (30% per hour max)
Nonoperating: 5% to 95% noncondensing (30% per hour max)

2.8.3.2 Wet bulb temperature

Operating: 37.7°C (99.9°F max)
Nonoperating: 40°C (104°F max)

2.8.4 Altitude

Operating: –60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)
Nonoperating: –60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

2.8.5 Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.

2.8.5.1 Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.

2.8.5.2 Nonoperating shock

The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 350 Gs based o n a nonr epetitive hal f-sine shock pulse
of 2 msec duration.

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NL35.2 Series SATA Product Manual, Rev. A

2.8.6 Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.

2.8.6.1 Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards speci­fied in this document are specified below.

5–22 Hz 0.25 Gs (Limited displacement)
23–350 Hz 0.50 Gs
351–500 Hz 0.25 Gs

2.8.6.2 Nonoperating vibration

The maximum nonoperating vibration levels that the drive may experience without incurring physical damage
or degradation in performance when subsequently put into operation are specified below.

5–22 Hz 0.25 Gs (Limited displacement)
23–350 Hz 5.0 Gs
351–500 Hz 1.0 Gs

2.9 Acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea­surements are consistent with ISO document 7779. Sound power measurements are taken under essentially
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is

defined by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

Table 3: Fluid Dynamic Bearing (FDB) motor acoustics

Idle* Performance seek

ST3400833NS
ST3400633NS

ST3250824NS
ST3250624NS

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which
may increase acoustic and power to operational levels.

2.8 bels (typ)

3.0 bels (max)

2.7 bels (typ)

2.9 bels (max)

3.7 bels (typ)

3.9 bels (max)

3.4 bels (typ)

3.6 bels (max)

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11

2.10 Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in the following table:

T a bl e 4: Radio frequency enviro nm en t s

Test Description Performance level Reference standard

Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN 61000-4-2: 95
Radiated RF immunity 80 to 1,000 MHz, 3 V/m,

80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @
200 Hz

Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on

external I/O

Surge immunity ± 1 kV differential, ± 2 kV common, AC

mains

Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms, 80% AM with

1 kHz sine

Voltage dips, interrupts 0% open, 5 seconds

0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds

A EN 61000-4-3: 96

B EN 61000-4-4: 95

B EN 61000-4-5: 95

A EN 61000-4-6: 97

C
C
C
B

ENV 50204: 95

EN 61000-4-11: 94

2.11 Reliability

Nonrecoverable read errors 1 per 1014 bits read, max
Annualized Failure Rate (AFR) 0.34% (nominal power, 25°C ambient temperature)
Contact start-stop cycles 50,000 cycles

Warranty 5 years on distribution units.

Preventive maintenance None required.

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty
cycle)

To determine the warranty for a specific drive, use a web browser to access the fol­lowing web page:

www.seagate.com/support/service/
From this page, click on t he “Verify Your W arranty” link. You will be asked to provide

the drive serial number, model number (or part number) and country of purchase.
The system will display the warranty information for your drive.

12

NL35.2 Series SATA Product Manual, Rev. A

2.12 Agency certification

2.12.1 Safety certification

The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections
of IEC950 and EN 60950 as tested by TUV North America.

2.12.2 Electromagnetic compatibilit y

Hard drives that displ ay th e CE mark com pl y wit h the Euro pean Union (EU) requirements specified in the Elec ­tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and
the immunity levels are defined by EN 55024.

Seagate uses an inde pend ent laboratory to confirm compl ian ce with the EC directives specified i n t he pr evious
paragraph. Drives are teste d in representa tive end-user systems. Although CE-marked Seagate drives comply
with the directives when used in the test systems, we cannot guarantee that all systems will comply with the
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O
cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators
should confirm EMC compliance and provide CE marking for their products.

Korean RRL

If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para­graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic
Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information
and Communication Republic of Korea.

These drives have been tested and com ply with the Electr omag netic Inter fere nce/E lectro magn etic Susce ptibil­ity (EMI/EMS) for Class B products. Drives ar e tested in a representative, end-user system by a Korean-recog­nized lab.

• EUT name (model numbers): ST3400833NS, ST3400633NS, ST3250824NS, and ST3250624NS

• Certificate numbers: E-H011-05-3453 (B)

• Trade name or applicant: Seagate Technology

• Manufacturing date: October 2005

• Manufacturer/nationality: Singapore and China

Australian C-Tick (N176)

If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communi­cation Authority (ACA).

2.12.3 FCC verification

These drives are intended to be cont ai ned solely w ithin a person al compute r or similar enclosu re (no t attached
as an external device ). As su ch, ea ch dr ive is co nsidere d to be a suba ssembly even when it is individually mar ­keted to the customer. As a subassembly, no Federal Communications Commission verification or certification
of the device is required.

Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total
assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B
computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is
likely to result in interference to radio and television reception.

NL35.2 Series SATA Product Manual, Rev. A

13

Radio and television interference. This equipment generates and uses radio frequency energy and if not
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio
and television reception.

This equipment is designed to provide reasonable protection against such interference in a residential installa­tion. However , there is no guarantee that interfer ence will not occur in a particular inst allation. If this equipm ent
does cause interference to radio or television, which can be determined by turning the equipment on and off,
you are encouraged to try one or more of the following corrective measures:

• Reorient the receiving antenna.

• Move the device to one side or the other of the radio or TV.

• Move the device farther away from the radio or TV.

• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.
If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-

gestions. You may find helpful the following booklet prepared by the Federal Communications Commission:
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Super­intendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication num­ber 004-000-00345-4.

2.13 Environmental protection

Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemica l subst ances .

2.13.1 European Union Restriction of Hazardous Substances (RoHS) Compliance statement

The European U nion Restr icti on of Hazard ous S ubst ance s (RoHS ) Dire cti ve re strict s the p resen ce of ch emic al
substances, includin g Lead (P b) , in electron i c product s ef fe cti ve July 2006. A lthoug h amen dmen ts to the Eur o­pean Union’s Restricti on of Hazar dous Sub s ta nces (Ro HS) Directive h ave not been finalized, t o the b est of o ur
knowledge the disc drives documented in this publication will comply with the final RoHS Directive require­ments.

A number of parts and materials in Seagate products are procured from external suppliers. We rely on the rep­resentations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our
supplier contracts require compliance with our chemical substance restrictions, and our suppliers document
their compliance wi th our re quire ment s by providing material conte nt declar ations for al l par ts an d mater ial s for
the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion
of any RoHS-regulated substance in such parts or materials.

Seagate also has internal system s in place to en sure ongoing complian ce with the RoHS Directive and all laws
and regulations which restrict chemical conte nt in electron ic produ cts. T hese system s include sta ndar d oper at­ing procedures that ensure that restricted substances are not utilized in our manufacturing operations, labora­tory analytical validation testing, and an internal auditing process to ensure that all standard operating
procedures are complied with.

14

NL35.2 Series SATA Product Manual, Rev. A

2.14 Corrosive environment

Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM
B845. However, this accelerated testing cannot duplicate every potential application environment. Users
should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive
chemicals as electronic drive component reliability can be affected by the installation environment. The silver,
copper , nicke l and gold films used i n Seag ate pr oduct s are especi ally sen s itive to the p resen ce of sulf ide, chlo­ride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or
exposed to an am bient rel at ive hum idity gr eate r th an 9 5%. Mat erial s used in cabin et fa bri cation , such as vulca­nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.

NL35.2 Series SATA Product Manual, Rev. A

15

3.0 Configuring and mounting the drive

This section contains the specifications and instructions for configuring and mounting the drive.

3.1 Handling and static-discharg e precautio ns

After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis­charge (ESD) hazards. Observe the following standard handling and static-discharge precautions:

Caution:

• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal
chassis of a computer that is plugg ed into a grounded outlet. Wear a grounded wrist strap through out the entire
installation procedure.

• Handle the drive by its edges or frame only.

• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.

• Always rest the drive on a padded, antistatic surface until you mount it in the computer.

• Do not touch the connector pins or the printed circuit board.

• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids
the warranty. Some factory-installed labels contain information needed to service the drive. Other labels are
used to seal out dirt and contamination.

16

NL35.2 Series SATA Product Manual, Rev. A

3.2 Configuring the drive

S

Each drive on the Serial ATA interface connects in a point-to-point configuration with the Serial ATA host
adapter. There is no master/slave relationship because each drive is considered a master in a point-to-point
relationships. If two drives are attached on one Serial ATA host adapter, the host operating system views the
two devices as if they were both “masters” on two sep a rate ports. This means both drives b ehave as if they are
Device 0 (master) devices.

Serial ATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive
for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA­equipped mother boar d or hos t ada pter may use a chipse t tha t do es no t supp ort SATA speed au toneg otiati on . If
you have a motherboard or host adapter that does not support autonegotiation:

• C onfigure the ju mper bloc k with a jumper a s shown in Figure 3 below to limit the da ta transfe r rate to 1.5 Gbits
per second (and leave the drive connected to the SATA-equipped motherboard or host adapter that doesn’t
support autonegotiation) or

• Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal
operation” (se e Figure 3 below), and connect the drive to that adapter. Thi s option has the benefit of not l imiting
the drive to a 1.5 Gbits/sec transfer rate.

3.0 Gbits per second operation

Limit data transfer rate to

1.5 Gbits per second

Jumper block

SATA interface connector

Figure 3. Serial ATA connectors and jumper options

SATA power connector

3.3 Serial ATA cables and connectors

The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connec­tions. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 5
for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.

For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive
and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind
mateable.

For installations which require cables, you can connect the drive as illustrated in Figure 4.

Signal connector

Power connector

ignal cable

Power cable

Figure 4. At tac hing SATA cabling

Each cable is keyed to ensure correct orientation. NL35.2 Series Serial ATA drives support latching SATA con­nectors.

NL35.2 Series SATA Product Manual, Rev. A

17

3.4 Drive mounting

n

(

You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the
bottom-mounting holes. See Figure 5 on page 17 for drive mounting dimensions. Follow these important
mounting precautions when mounting the drive:

• Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.

• Use only 6-32 UNC mounting screws.

• The screws should be inserted no more than 0.150 inch (3.81 mm) into the bottom or side mounting holes.

• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).

5.787 (146.9898) max.

1.122

+ .020

(28.499

+ .508)

[1]

.138

3.505)

CLof conn. Datum B

2.00

(50.80)

1.638

(41.605)

[1]

4.000

(101.6)

.814

(20.676)

CLof drive

[1]

2 x 3.750

(2 x 95.25)

[1]

.250 + .015

(6.35 + .381)

[1]

4.000

(101.6)

1.028 max

(26.111 max)

2 x 1.625

(2 x 41.28)

[1]

Notes:

Dimensions are shown in inches (mm).
[1] Dimensions per SFF-8301 specificatio

[1]

(3x both sides)

2 x 1.750

(2 x 44.45)

4.000

(101.6)

[1]

Figure 5. Mounting dimensions—top, side and end vie w

[1]

18

NL35.2 Series SATA Product Manual, Rev. A

NL35.2 Series SATA Product Manual, Rev. A

19

4.0 Seria l ATA (S ATA) in te rface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA
programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT
Attachment” specification.

4.1 Hot-Plug compatibility

NL35.2 Series Serial ATA drives incorporate connectors which enable you to hot plug these drives in accor­dance with the Serial ATA II: Extension to Serial ATA 1.0a specification. This specification can be downloaded
from www.serialata.org.

20

NL35.2 Series SATA Product Manual, Rev. A

4.2 Serial ATA device plug connector pin definitions

Table 5 summarizes the signals on the Serial ATA interface and power connectors..

Table 5: Serial ATA connector pin definitions

Segment Pin Function Definition

S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 A­S4 Ground 2nd mate
S5 B- Differential signal pair B from Phy
S6 B+

Signal

S7 Ground 2nd mate

Key and spacing separate signal and power segments

P1 V
P2 V
P3 V

33

33

33

3.3V power

3.3V power

3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate

Power

P7 V
P8 V
P9 V

5

5

5

5V power, pre-charge, 2nd mate
5V power

5V power
P10 Ground 2nd mate
P11 Ground or LED signal If grounded, drive does not use deferred spin
P12 Ground 1st mate.
P13 V
P14 V
P15 V

12

12

12

12V power, pre-charge, 2nd mate

12V power

12V power

Notes:

1. All pins are in a single row, with a 1.27 mm (0.050”) pitch.

2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:

• the ground pins P4 and P12.

• the pre-charge power pins and the other ground pins.

• the signal pins and the rest of the power pins.

3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when
installed in a blind-mate backplane configuration.

4. All used voltage pins (Vx) must be terminated.

NL35.2 Series SATA Product Manual, Rev. A

21

4.3 Supported ATA commands

The following table lists Serial ATA standard commands that the drive supports. For a detailed description of
the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See
“S.M.A.R.T. commands” on page 27.for details and subcommands used in the S.M.A.R.T. implementation.

Table 6: Supported ATA commands

Command nam e Command code (in hex)

Check Power Mode 98H or E5
Device Configuration Freeze Lock B1H / C1
Device Configuration Identify B1H / C2
Device Configuration Restore B1H / C0
Device Configuration Set B1H / C3
Device Rese t 08
Download Microcode 92
Execute Device Diagnostics 90
Flush Cache E7
Flush Cache Extended EA
Format Track 50
Identify Device EC

H
H
H

H

H

H

H

Idle 97H or E3
Idle Immediate 95H or E1
Initialize Device Parameters 91
Read Buffer E4
Read DMA C8
Read DMA Extended 25
Read DMA Without Retries C9
Read Log Ext 2F
Read Multiple C4
Read Multiple Extended 29
Read Native Max Address F8
Read Native Max Address Extended 27
Read Sectors 20
Read Sectors Extended 24
Read Sectors Without Retries 21
Read Verify Sectors 40
Read Verify Sectors Extended 42
Read Verify Sectors Without Retries 41
Recalibrate 10
Security Disable Password F6
Security Erase Prepare F3

H

H
H

H

H

H

H
H
H
H
H
H
H
H
H
H
H
H
H

H
H
H
H
H

H

H

22

NL35.2 Series SATA Product Manual, Rev. A

Command name Command code (in hex)

Security Erase Unit F4
Security Freeze F5
Security Set Password F1
Securit y Un l o ck F2
Seek 70
Set Features EF
Set Max Address F9

H
H
H
H
H

H

H

Note: Individual Set Max Address
commands are identified by the value
placed in the Set Max Features regis­ter as defined to the right.

Set Max Address Extended 37
Set Multiple Mode C6

H

H

Sleep 99H or E6
S.M.A.R.T. Disable Operations B0H / D9
S.M.A.R.T. Enable/Disable Autosave B0H / D2
S.M.A.R.T. Enable Operations B0H / D8
S.M.A.R.T. Execute Offline B0H / D4
S.M.A.R.T. Read Attribute Thresholds B0H / D1
S.M.A.R.T. Read Data B0H / D0
S.M.A.R.T. Read Log Sector B0H / D5
S.M.A.R.T. Return St atus B0H / DA
S.M.A.R.T. Save Attribute Values B0H / D3
S.M.A.R.T. Write Log Sector B0H / D6
Standby 96H or E2
St andby Immediate 94H or E0
Write Buffer E8
Write DMA CA
Write DMA Extended 35
Write DMA FUA Extended CD
Write DMA Without Retries CB
Write Log Extended 3F
Write Multiple C5
Write Multiple Extended 39
Write Multiple FUA Extended CE
Write Sectors 30
Write Sectors Without Retries 31
Write Sectors Extended 34

H

H

H

H
H

H

H

H

H
H
H
H

Address:

Password:

Unlock:

Freeze Lock:

H
H
H
H
H
H
H
H

H
H
H

H
H

Lock:

00
01
02
03
04

H
H
H
H
H

NL35.2 Series SATA Product Manual, Rev. A

23

4.3.1 Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following
power up. The data is organized as a single 512-byte block of data, whose contents are shown in Table 6 on
page 21. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or
vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Serial ATA specifica­tion.

Word Description Value

0

Configuration information:

• Bit 15: 0 = ATA; 1 = ATAPI

• Bit 7: removable media

0C5A

• Bit 6: removable controller

• Bit 0: reserved
1 Number of logical cylinders 16,383
2 ATA-reserved 0000
3 Number of logical heads 16
4 Retired 0000
5 Retired 0000
6 Number of logical sectors per logical track: 63 003F
7–9 Retired 0000
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000
21 Retired 0400
22 Obsolete 0000
23–26 Firmware revision (8 ASCII character string, padded with blanks to end of

x.xx

string)

27–46 Drive model number: (40 ASCII characters, padded with blanks to end of

string)

ST3400833NS
ST3400633NS
ST3250824NS
ST3250624NS

47 (Bits 7–0) Maximum sectors per interrupt on Read multiple and Write

8010

multiple (16)
48 Reserved 0000
49 Standard Standby timer, IORDY supported and may be disabled 2F00
50 ATA-reserved 0000
51 PIO data-transfer cycle timing mode 0200
52 Retired 0200
53 Words 54–58, 64–70 and 88 are valid 0007
54 Number of current logical cylinders xxxx
55 Number of current logical heads xxxx
56 Number of current logical sectors per logical track xxxx
57–58 Current capacity in sectors xxxx
59 Number of sectors transferred during a Read Multiple or Write Multiple

command

xxxx

H
H
H
H
H

H

H

H
H
H
H

H
H
H

H

H
H
H
H
H
H

24

NL35.2 Series SATA Product Manual, Rev. A

Word Description Value

60–61 Total number of user-addressable LBA sectors available

0FFFFFFFh*
(see Section 2.1 for related information)
*Note: The maximum value allowed in this field is: 0FFFFFFFh

(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137
Gbytes will have 0FFFFFFFh in this field and the actual number of user­addressable LBAs specified in words 100-103. This is required for drives
that support the 48-bit addressing feature.

62 Retired 0000
63 Multiword DMA active and modes supported (see note following this

xx07
table)

64 Advanced PIO modes supported (modes 3 and 4 supported) 0003
65 Minimum multiword DMA transfer cycle time per word (120 nsec) 0078
66 Recommended multiword DMA transfer cycle time per word (120 nsec) 0078
67 Minimum PIO cycle time without IORDY flow control (240 nsec) 00F0
68 Minimum PIO cycle time with IORDY flow control (120 nsec)

0078

69–74 ATA-reserved 0000
75 Queue depth 0000
76 Serial ATA capabilities xxxx
77 Reserved for future Serial ATA definition xxxx
78 Serial ATA features supported xxxx
79 Serial ATA features enabled xxxx
80 Major version number 003E
81 Minor version number 0000
82 Command sets supported 364B
83 Command sets supported 7C03
84 Command sets support extension 4003
85 Command sets enabled 30xx
86 Command sets enabled 0001
87 Command sets enable extension 4000
88 Ultra DMA support and current mode (see note following this table) xx3F
89 Security erase time 0000
90 Enhanced security erase time 0000
92 Master password revision code FFFE
93 Hardware reset value

xxxx

(see description following this table)

H

H

H
H
H
H

H
H

H
H
H
H
H

H

H

H
H

H

H

H

H

H

H

H

H

H

95–99 ATA-reserved 0000
100–

103

Total number of user-addressable LBA sectors available (see Section 2.1
for related information). These words are required for drives that support
the 48-bit addressing feature. Maximum value: 0000FFFFFFFFFFFFh.

104–

ATA-reserved 0000

127

H

ST3400833NS = 781,422,768
ST3400633NS = 781,422,768
ST3250824NS = 488,397,168
ST3250624NS = 488,397,168

H

NL35.2 Series SATA Product Manual, Rev. A

25

Word Description Value

128 Securit y sta tu s 0001
129–

Seagate-reserved xxxx

159
160–

ATA-reserved 0000

254
255 Integrity word xxA5

H

H

H

H

Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported
Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data.

Description (if bit is set to 1)

Bit Word 63

0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.

Bit Word 88

0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
5 Ultra DMA mode 5 is supported.
6 Ultra DMA mode 6 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.
14 Ultra DMA mode 6 is currently active.

26

NL35.2 Series SATA Product Manual, Rev. A

4.3.2 Set Features command

This command con trols the implement ation of var ious features that the dr iv e sup port s. When the drive receives
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter­rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.
Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the
Features register are defined as follows:

T a ble 7: Set Feat ur es comman d value s

02
03

10
55
82
90
AA
F1

Enable write cache (default).

H

Set transfer mode (based on value in Sector Count register).

H

Sector Count register values:
00HSet PIO mode to default (PIO mode 2).
01HSet PIO mode to default and disable IORDY (PIO mode 2).
08HPIO mode 0
09HPIO mode 1
0AHPIO mode 2
0BHPIO mode 3
0CHPIO mode 4 (default)
20HMultiword DMA mode 0
21HMultiword DMA mode 1
22HMultiword DMA mode 2
40HUltra DMA mode 0
41HUltra DMA mode 1
42HUltra DMA mode 2
43HUltra DMA mode 3
44HUltra DMA mode 4
45HUltra DMA mode 5
46HUltra DMA mode 6
Enable use of SATA features

H

Disable read look-ahead (read cache) feature.

H

Disable write cache

H

Disable use of SATA features

H

Enable read look-ahead (read cache) feature (default).

H

Report full capacity available

H

Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-

cated above.

NL35.2 Series SATA Product Manual, Rev. A

27

4.3.3 S.M.A.R.T. commands

S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni­tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines
that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.
S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.
commands and implementation, see the Draft ATA-5 Standard.

SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4H) that elimi­nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.

You must have a recent BIOS or sof twar e p ackage tha t suppor t s S.M .A.R.T. to use this S.M.A.R.T. commands.
The table below shows the S.M.A.R.T. command codes that the drive uses.

T a ble 8: S.M.A. R. T. commands

Code in features register S.M.A.R.T. command

D0
D2
D3
D4
D5
D6
D8
D9
DA

H
H
H
H
H
H
H
H

H

S.M.A.R.T. Read Data
S.M.A.R.T. Enable/Disable Attribute Autosave
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Execute Off-line Immediate (runs DST)
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Write Log Sector
S.M.A.R.T. Enable Operations
S.M.A.R.T. Disable Operations
S.M.A.R.T. Return Status

Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x 04

(abort) is written to the Error register.

4.3.3.1 S.M.A.R.T. Command Transport (SCT)

NL35.2 Series Serial ATA drives implement SCT technologies to enable the drive to perform in a nearline stor­age environment.

The command transport uses log sectors to pass-through commands, to inquire about status, and to control
data flow. For detailed information about SCT, refer to the T13 working draft 1701DT-N, Rev. 5 (or later). T13
working draft publications are available in PDF form at the following URL:

http://www.t13.org/docs2005/DT1701r5-SCT.pdf
Or, for the latest list of downloadable working drafts, go to the following URL and download the latest revision:
http://www.t13.org/docs2005/

28

NL35.2 Series SATA Product Manual, Rev. A

NL35.2 Series SATA Product Manual, Rev. A

29

5.0 Seagate Technology support services

Internet

For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is
available 24 hours daily by email for your questions.

Presales Support:

[e-mail]

T e chn i cal Supp or t:

[e-mail]

Warranty Support:

http://www.seagate.com/support/service/index.html

mySeagate

my.seagate.com is the industry's first Web portal designed specifically for OEMs and distributors. It provides
self-service access to critical applications, personalized content and the tools that allow our partners to
manage their Seagate account functions. Submit pricing requests, orders and returns through a single,
password-protected Web interface-anytime, anywhere in the world.

spp.seagate.com

spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You
may register for customiz e d communi cation s that ar e not ava ila ble on the web. The s e communi catio ns cont ai n
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the
benefits or to register, go to spp.seagate.com, any time, from anywhere in the world.

Seagate Service Centers

Presales Support

Our Presales Support staff can help you determine which Seagate products are best suited for your specific
application or computer system, as well as product availability and compatibility.

Technical Support

Seagate technical support is available to assist you online at support.seagate.com or through one of our call
centers. Have your system configuration information and your “ST” model number available.

SeaTDD™ ([phone]) is a telecommunications device for the deaf (TDD). You can send questions or
comments 24 hours daily and exchange messages with a technical support specialist during normal business
hours for the call center in your region.

30

NL35.2 Series SATA Product Manual, Rev. A

Customer Service Operations

Warranty Service

Seagate offer s worldwi de custom er supp ort for Seagate pro duct s . Seagate distr i butors, OEM s and other direct
customers should contact their Seagate Customer Service Operations (CSO) representative for warranty­related issues. Resellers or end users of drive products should contact their place of purchase or Seagate
warranty service for assistance. Have your serial number and model or part number available.

Data Recove ry Service s

Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery
services labs are currently located throughout the world. . Additional information, including an online request
form and data loss prevention resources, is available at http://services.seagate.com/index.aspx

Authorized Service Centers

Seagate Service Centers are available on a global basis for the return of defective products. Contact your
customer support representative for the location nearest you.

USA/Canada/Latin America support services

For an extensive list of telephone numbers to technical support, presales and warranty service in USA/
Canada/Latin America, including business hours, go to the "Contact Us" page on www.seagate.com.

Global Customer Support

Presales, Technical, and Warranty Support
Call Center Toll-free Direct dial

USA, Canada,
and Mexico 1-800-SEAGATE [phone]

Data Recovery Services
Call Center Toll-free Direct dial FAX

USA, Canada, 1-800-475-01435 [phone]-475-0158
and Mexico [phone]

Europe, the Middle East and Africa Support Services

For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the
Middle East and Africa, go to the "Contact Us" page on www.seagate.com.

Asia/Pacific Support Services

For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,
go to the "Contact Us" page on www.seagate.com.

NL35.2 Series SATA Product Manual, Rev. A

31

Index

A

ACA 12
acceleration 10
acoustics 10
Active 8
Active mode 8
actuator arm 5
AFR 11
Agency certification 12
altitude 9
Ambient temperature 9
ambient temperature 4, 5
Annualized Failure Rate 11
Areal density 4
ATA commands 21
Australia/New Zealand Standard AS/NZS3548 1995

12

Australian Communication Authority (ACA) 12
Australian C-Tick 12
Average latency 4
Average seek time 4

B

buffer 4
Bytes per sector 3

Device Configuration Identify 21
Device Configuration Restore 21
Device Configuration Set 21
Device Reset 21
dimensions 17
disc surface 5
Download Microcode 21

E

Electrical fast transient 11
Electromagnetic compatibility 12
Electromagnetic Compatibility (EMC) 12
Electromagnetic Compatibility control Regulation 12
Electromagnetic Co mpati b ility Directive (8 9/336/EEC)

12

Electromagnetic immunity 11
Electrostatic discharge 11
electrostatic discharge (ESD) 15
EN 55022, Class B 12
EN 55024 12
EN 60950 12
Environmental specifications 9
EPRML 4
error-correction algorithms 1
errors 11
ESD 15
EU 12
European Union (EU) requirements 12
Execute Device Diagnostics 21

C

cables and connectors 16
Cache 4
capacity 3
case temperature 9
CE mark 12
certification 12
Check Power Mode 21
Class B computing device 12
compatibility 12
Conducted noise 7
Conducted RF immunity 11
Configuring the drive 15
connectors 16
Corrosive environmen t 14
CSA C22.2 (950) 12
cycles 11
Cylinders 3

D

data-transfer rates 1
DC power 5
Default logical geometry 3
Device Configuration Freeze Lock 21

F

FCC verification 12
features 1
Federal Communications Commission 12
Flush Cache 21
Flush Cache Extended 21
Format Track 21
Formatted capacity 3

G

Gbytes 3
geometry 3
Gs 10
Guaranteed sectors 3
guaranteed sectors 3

H

Handling precautions 15
heads 3
humidity 9

I

I/O data-transfer rate 4

32

NL35.2 Series SATA Product Manual, Rev. A

Identify Device 21
Identify Device command 23
Idle 8, 21
Idle Immediate 21
Idle mode 5, 8
IEC950 12
Information Technology Equipment (ITE) 12
Initialize Device Parameters 21
Input noise ripple 7
input voltage 5
Interface 4
interface 19
Interleave 4
Internal data-transfer rate 4
is 4
ISO document 7779 10
ITE 12

K

Korea Ministry of Information and Communication

(MIC) 12

Korean RRL 12

L

latency 4
latency time 5
LBA mode 3
logical geometry 3

M

maintenance 11
master/slave 2
maximum tempe rature 9
MIC 12
mounting 17
mounting screws 9
mounting the drive 15

N

noise 7
nominal power 4
Nonoperating shock 9
Nonoperating vibration 10
Nonrecoverable read errors 11

O

Operating power 5
Operating shock 9
Operating vibration 10

P

Physical characteristics 4

point-to-point 2, 16
Power consumption 5
power consumption 5
Power dissipation 6
Power modes 8
Power specifications 5
Power-management modes 8
Power-on to Ready 5
precautions 15
printed circuit board 15
programmable power management 8

R

Radiated RF immunity 11
Radio and television interference 13
radio frequency (RF) 11
random seeks 5
Read Buffer 21
Read DMA 21
Read DMA Extended 21
Read DMA without Retries 21
read errors 11
Read Log Ext 21
Read Multiple 21
Read Multiple Extended 21
Read Native Max Address 21
Read Native Max Address Extended 21
Read Sectors 21
Read Sectors Extended 21
Read Sectors Without Retries 21
Read Verify Sectors 21
Read Verify Sectors Extended 21
Read Verify Sectors Without Retries 21
read/write actuator arm 5
Read/write heads 3
Read/write power 5
Ready to spindle stop 5
Recalibrate 21
Recording density 4
Recording method 4
Recording technology 4
relative humidity 9
Reliability 11
RF 11
RMS read/write current 7
RoHS 13
RRL 12

S

S.M.A.R.T. Disable Operations 22
S.M.A.R.T. Enable/Disable Autosave 22
S.M.A.R.T. Enagle Operations 22
S.M.A.R.T. Execute Offline 22
S.M.A.R.T. implementation 21

NL35.2 Series SATA Product Manual, Rev. A

33

S.M.A.R.T. Read Attribute Thresholds 22
S.M.A.R.T. Read Data 22
S.M.A.R.T. Read Log Sector 22
S.M.A.R.T. Return Status 22
S.M.A.R.T. Sav e Attribute Value s 22
S.M.A.R.T. Write Log sector 22
Safety certification 12
SATA 4, 19
screws 9
sector 3
sectors 3
Sectors per track 3
Security Disable Password 21
Security Erase Prepare 21
Security Erase Unit 22
Security Freeze 22
Security Set Password 22
Security Unlock 22
Seek 22
seek mode 5
Seek mode power 5
Seek time 4
Seeking 6
Serial ATA 4
Serial ATA (SATA) interface 19
serial ATA ports 2
Servo electronics 5
servo electronics 5
Set Features 22
Set Max Address 22
Set Max Address Extended 22
Set Multiple Mode 22
Shock 9
single-track seeks 4
Sleep 6, 8, 22
Sleep mode 8
Spindle speed 4
spindle stop 5
Spinup 6
Spinup power 5
Standby 6, 8, 22
Standby Immediate 22
Standby mode 5, 8
standby timer 8
Standby to Ready 5
Start/stop times 5
start-stop cycles 11
static-discharge 15
support services 29
Surge immunity 11

timer 8
timers 8
Track density 4
Track-to-track 4
Track-to-track seek time 4
Tunneling Magnetoresistive (TMR) heads 1
TUV North America 12

U

UL 1950 12

V

Vibration 10
voltage 5
Voltage dips, interrupts 11
Voltage tolerance 7

W

wet bulb temperature 9
Write Buffer 22
Write DMA 22
Write DMA Extended 22
Write DMA FUA Extended 22
Write DMA Without Retries 22
Write Log Extended 22
Write Multiple 22
Write Multiple Extended 22
Write Multiple FUA Extended 22
Write Sectors 22
Write Sectors Extended 22
Write Sectors Without Retries 22

T

technical support services 29
temperature 4, 9
temperature gradient 9

34

NL35.2 Series SATA Product Manual, Rev. A

Seagate Technology LLC

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Publication Number: 100409437, Rev. A, Printed in USA